And all the toilets we tested this time aced our liquid-waste tests—a first. Dual-flush toilets, which include a separate setting that uses only about one gallon per flush for liquid waste ...

Toilets may seem like simple contraptions, but they’re elegant in their simplicity. Modern ones feature innovations that improve considerably on the traditional gravity-flush mechanism ...

About 400 million litres (88 million gallons) of water are estimated to leak from UK toilets every day. But much of this can be blamed on dual-flush toilets, designed to save water, the BBC has ...